This name is a synonym of Muhlenbergia glomerata (Willd.) Trin..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 425257) with original publication details: Index Kew. 2: 269 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1164913-2.
This name was in version 1 of The Plant List, record kew-425257, and has not been changed.